Can Britain Really Afford to Fear Private Finance on Defence

Britain wants a stronger military. The question is whether (and when) it is prepared to pay for it.

With pressure mounting to increase defence spending to 3% of GDP by 2030 and potentially 3.5% by 2035, reports that John Healey is considering a return to private finance. This should be seen as a sign of pragmatism, not desperation.

For years, ministers have promised more defence spending while insisting that public finances remain under tight control. The result has often been a familiar cycle: ambitious announcements, delayed programmes and funding gaps. Most recently, the Government reportedly had to plug a £4.7 billion hole in its defence investment plans.

Private capital offers a way out of that trap.

The logic is simple. If Britain needs more ships, bases, equipment and military infrastructure, why should taxpayers be forced to shoulder the entire bill upfront? Private finance allows the cost to be spread over the life of an asset, matching payment with use. That is how much of the country's infrastructure has been delivered for decades.

Critics of private finance often focus on the long-term payment commitments. Yet defence itself is a long-term commitment. Nobody expects a frigate, a military facility or a critical piece of equipment to serve the country for only a few years. If an asset delivers strategic value for decades, there is nothing inherently unreasonable about paying for it over decades.

What's more, private finance can impose a level of commercial discipline that governments sometimes struggle to achieve on their own. When investors and contractors have money at risk, they have a powerful incentive to control costs and deliver efficiently. That matters at a time when taxpayers have witnessed public projects repeatedly running over budget. HS2 shows all too starkly the consequences when risk sits too heavily with the public sector.

The proposals reportedly under consideration go beyond the traditional PFI model. Ideas include an international defence bank backed by allied nations and structures that would enable private companies to provide upfront funding for military capability. The aim is not simply to borrow more, but to unlock pools of capital that would otherwise remain on the sidelines.

Britain faces an increasingly dangerous world. NATO expectations are rising. Defence planners need certainty and speed, not endless debates about Treasury constraints.

The reality is stark: if the country is serious about hitting its defence spending targets, private finance is not the problem. It may be part of the solution.